Answer:
                 Journal Entries
Date   Account Titles and Explanation   Debit     Credit
Feb. 1   Cash                         $12,500 Â
         Bonds                               $12,300
         Gain on sale of bonds                  $200
      (Being bond issued at premium)
Feb. 1   Unrealized Gain                $300
           Income Summary                     $300
      (Being unrealized gain transferred)
Notes:
1) The Unrealized gain will be transferred to income statement at the time of sale. $300 ($12,300 - $12,000)
2) It is assumed that interest receivable for January month is included while calculating the selling price of bonds, hence no need to consider again.